Electric signal for railway-trains



(No Model.)

J. 0. HENRY. ELECTRIC SIGNAL FOE RAILWAY TRAINS. No. 543,933.

Patented Aug. 6, 1895.

' Nrrnco STATES PATENT @rrrcn.

JOHN C. HENRY, OF WESTFIELD, JERSEY.

ELECTRIC SIGNAL FOR RAILWAY-TRAINS.

fiPEGIFICATION forming part of Letters Patent No. 543,933, dated August6, 1895.

' Application filed April 20, 1895. Serial No. 546,542. (No models To(2% whom it may concern.-

Be it known that I, JOHN C. HENRY, a citizen of the United States,residing in Westfield, county of Union, State of New Jersey, haveinvented certain new and useful Improvements in Electric Signals forRailroads, of which the following is a specification.

This invention relates to improvements in signaling devices forrailway-trains.

The main object is to dispense with the ordinary bell-cord and utilizean electric current to actuate the signal and bell located on thelocomotive.

The invention having special advantages on such rolling-stock as iscommonly used on elevated railways, it will be described in thatconnection.

In the operation of elevated-railway trains the common practice is forthe guards at thedifferent gates to transmit impulses from one to theother by the bell-rope. When the guard in the forward part of the trainreceives a number of impulses corresponding to the number of guards inthe' rear, he then assumes that all gates are closed and signals theengineer to go ahead. To close the gates the rule is for the guards touse one hand for each of them and afterward to give the signal. Thisrule is frequently disobeyed. It is quite common in his eagerness tosave time for the guard to close but one gate and pull the bellcord atthe same time. This frequently exposes the passengers, who are rushingforward to catch the train, to danger.

. In the drawing, A represents the locomotive; B, a section of one ofthecars of the train.

c, c, 0 and 0 represent a number of gates at the car-entrances.

e e represent an electric circuit passing around the train through themagnet f and terminating at the battery 9.

h and h represent switches which complete or break the circuit onopening or closing the gates.

circuit is completed and the pointer assumes the opposite position. Toattract the attention of the engineer, the bell is tripped and soundedat each change.

What I claim as new, and desire to secure by Letters Patent, isv 1. In asignaling device for railway trains a magnetic electric alarm, locatedon the locomotive; a circuit completed throughout the train; switchesarranged at the gates of the cars, and means whereby an alarm isactuated by opening any one of the gates, and the opposite alarm isgiven only by the closure of all of said gates.

2. In a signaling device for railway trains a magnetic electric alarm,located on the 10- comotive; a circuit completed throughout the train;switches arranged at the gates of the cars, and means whereby a signalis made on the locomotive by opening any one of the gates, and anothersignal is made when all of said gates are closed.

3. The combination with a railway car, of a gate protecting eachentrance thereto, a switch adjacent to each gate and in position to beoperated thereby, a signaling device in circuit with said switch, andmeans whereby one signal is given when a gate is opened and another whenall the gates are closed, substantially as described.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

' JOHN G. HENRY. Witnesses: v

VALLA KILTON, MARY HAMPTON LLOYD.

